Dr Challoner's High School vs Stony Dean School
Side-by-side comparison of key school data
Dr Challoner's High School
Amersham
Stony Dean School
Amersham
Overview
Phase
Secondary
Special
Type
Academy converter
Community special school
Age Range
11–18
11–18
Gender
Girls
Mixed
Religious Character
None
Does not apply
Admissions
Selective
-
Local Authority
Buckinghamshire
Buckinghamshire
Pupils & Capacity
Pupils
1391
215
Capacity
1145
-
Occupancy
121%
-
FSM %
2.6%
41.4%
Nursery
Sixth Form
Boarding
Ofsted
Overall Rating
Outstanding
-
Quality of Education
Outstanding
-
Behaviour & Attitudes
Outstanding
-
Personal Development
Outstanding
-
Leadership & Management
Outstanding
-
Last Inspected
Nov 2023
Dec 2024
Performance (2026)
Progress 8
-
-
Attainment 8
76.2
3.5
GCSE Eng+Maths 5+
100%
2.9%
KS2 Reading
-
-
KS2 Maths
-
-
KS2 Writing
-
-
A-Level Performance (2024/25)
Average Grade
A-
-
Points Per Entry
45.7
-
Best 3 A-Levels
A-
-
AAB+ %
41%
-
Value Added
Average
-
A-Level Students
209
-
Retention
100%
-
University Destinations (2022/23 cohort)
Top-third university
71%
-
Degree course
89%
-
Any L4+ destination
95%
-
Apprenticeships
5%
-
Cohort size
193
-
A-Level Subjects
Subjects offered
15
0
Top subjects
Mathematics (242)
Mathematics (174)
Biology (138)
Biology (138)
Chemistry (138)
Psychology (122)
Chemistry (122)
Psychology (98)